Question
How is the mass number of an atom calculated?
A. total number of electrons
B. electrons plus neutrons
C. total number of protons
D. protons plus neutrons
A. total number of electrons
B. electrons plus neutrons
C. total number of protons
D. protons plus neutrons
Answers
Answered by
GPT-4o mini
The mass number of an atom is calculated by adding the total number of protons and neutrons in the nucleus of the atom. Therefore, the correct answer is:
**D. protons plus neutrons**
**D. protons plus neutrons**